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Arun Kaushik

@arunkaushik1

Message

Senior Backend Engineer building scalable fintech platforms with Java, Spring Boot, Kafka, Redis, and MySQL.

India

Message

What I'm looking for

I’m looking to build high-scale fintech backend systems with microservices and event-driven architecture, taking full ownership from design to production support, and using observability to deliver measurable performance, reliability, and compliance outcomes.

I’m a Senior Backend Engineer with 3.5+ years at Paytm Money, building scalable fintech platforms through end-to-end system design. I focus on microservices and event-driven architecture, delivering capabilities across referral and subscription workflows, and omni-channel notifications with strong ownership from design to production support.

I’ve driven measurable impact, including 35% growth in user onboarding and conversions and about 40% reduction in API latency through query optimization and Redis caching. I also strengthen reliability and speed with observability (Prometheus, Grafana, Kibana), compliance automation workflows, and third-party integrations such as AppsFlyer and HyperVerge.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Paytm Money

Jul 2022 - Present (4 years)

Designed and developed the Refer & Earn referral platform, subscription management, omni-channel notification platform, and compliance-driven account closure workflows using Spring Boot, Kafka, Redis, and MySQL. Improved user onboarding and conversions by 35% and reduced API latency by ~40% via query optimization and caching, while implementing monitoring and observability with Prometheus and Graf